Among high incident occupations, truck drivers (includes heavy, tractor-trailer, and light or delivery truck drivers), janitors and cleaners, and carpenters had a greater proportion of injuries and illnesses on Mondays.

In contrast, cooks and sales workers had a greater proportion of their injuries and illnesses on Thursdays and Fridays.

These data are from the BLS Injuries, Illnesses, and Fatalities program. Additional information is available from "Time of Lost-Workday Injuries and Illnesses, 2002: First Results Announced by BLS," (PDF) news release USDL 04-2407.